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122121001102021 = 2272260012380423
BaseRepresentation
bin11011110001000110000010…
…111000111110101011000101
3121000101122122112112202012121
4123301012002320332223011
5112001312302240231041
61111421340255245541
734502644152115345
oct3361060270765305
9530348575482177
10122121001102021
1135a03253485959
1211843a502198b1
13531ac653b005c
14222298bbbcd25
15e1b9aa4367d1
hex6f1182e3eac5

122121001102021 has 8 divisors (see below), whose sum is σ = 122659573345344. Its totient is φ = 121582434072000.

The previous prime is 122121001101937. The next prime is 122121001102039. The reversal of 122121001102021 is 120201100121221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122121001102021 - 225 = 122120967547589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122121001101986 and 122121001102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122121001102081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50112016 + ... + 52492438.

It is an arithmetic number, because the mean of its divisors is an integer number (15332446668168).

Almost surely, 2122121001102021 is an apocalyptic number.

It is an amenable number.

122121001102021 is a deficient number, since it is larger than the sum of its proper divisors (538572243323).

122121001102021 is a wasteful number, since it uses less digits than its factorization.

122121001102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606651.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122121001102021 its reverse (120201100121221), we get a palindrome (242322101223242).

The spelling of 122121001102021 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one million, one hundred two thousand, twenty-one".

Divisors: 1 227 226001 2380423 51302227 540356021 537977978423 122121001102021