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122020212022001 = 155378570645217
BaseRepresentation
bin11011101111101000001011…
…011001001001101011110001
3121000001000111101002222122222
4123233220023121021223301
5111443134343234201001
61111303151143410425
734462445414064116
oct3357501331115361
9530030441088588
10122020212022001
1135974532698307
1211828402153a15
1353115c2271c77
14221bb4a03690d
15e1905bcd061b
hex6efa0b649af1

122020212022001 has 4 divisors (see below), whose sum is σ = 122098782668772. Its totient is φ = 121941641375232.

The previous prime is 122020212021997. The next prime is 122020212022021. The reversal of 122020212022001 is 100220212020221.

It is a happy number.

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 25975331560000 + 96044880462001 = 5096600^2 + 9800249^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020212022001 - 22 = 122020212021997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020212022021) 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, 39285321056 + ... + 39285324161.

It is an arithmetic number, because the mean of its divisors is an integer number (30524695667193).

Almost surely, 2122020212022001 is an apocalyptic number.

It is an amenable number.

122020212022001 is a deficient number, since it is larger than the sum of its proper divisors (78570646771).

122020212022001 is an equidigital number, since it uses as much as digits as its factorization.

122020212022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78570646770.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122020212022001 its reverse (100220212020221), we get a palindrome (222240424042222).

The spelling of 122020212022001 in words is "one hundred twenty-two trillion, twenty billion, two hundred twelve million, twenty-two thousand, one".

Divisors: 1 1553 78570645217 122020212022001