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122120121201101 = 269453978145729
BaseRepresentation
bin11011110001000101001110…
…011100011011000111001101
3121000101120101012212011001122
4123301011032130123013031
5112001304002011413401
61111421113104050325
734502613306100502
oct3361051634330715
9530346335764048
10122120121201101
1135a02941831311
12118438456039a5
13531ab55002c1a
142222906db54a9
15e1b95807a21b
hex6f114e71b1cd

122120121201101 has 4 divisors (see below), whose sum is σ = 122574099347100. Its totient is φ = 121666143055104.

The previous prime is 122120121200999. The next prime is 122120121201109. The reversal of 122120121201101 is 101102121021221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62739627097225 + 59380494103876 = 7920835^2 + 7705874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122120121201101 is a prime.

It is a super-2 number, since 2×1221201212011012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122120121201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120121201109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226989072596 + ... + 226989073133.

It is an arithmetic number, because the mean of its divisors is an integer number (30643524836775).

Almost surely, 2122120121201101 is an apocalyptic number.

It is an amenable number.

122120121201101 is a deficient number, since it is larger than the sum of its proper divisors (453978145999).

122120121201101 is an equidigital number, since it uses as much as digits as its factorization.

122120121201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453978145998.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122120121201101 its reverse (101102121021221), we get a palindrome (223222242222322).

The spelling of 122120121201101 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, two hundred one thousand, one hundred one".

Divisors: 1 269 453978145729 122120121201101