121022012101 has 8 divisors (see below), whose sum is σ = 122155319000. Its totient is φ = 119889123840.

The previous prime is 121022012093. The next prime is 121022012179. The reversal of 121022012101 is 101210220121.

It can be written as a sum of positive squares in 4 ways, for example, as 231009601 + 120791002500 = 15199^2 + 347550^2 .

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 121022012101 - 2³ = 121022012093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022012401) 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, 492061 + ... + 695821.

It is an arithmetic number, because the mean of its divisors is an integer number (15269414875).

Almost surely, 2^121022012101 is an apocalyptic number.

It is an amenable number.

121022012101 is a deficient number, since it is larger than the sum of its proper divisors (1133306899).

121022012101 is a wasteful number, since it uses less digits than its factorization.

121022012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209319.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121022012101 its reverse (101210220121), we get a palindrome (222232232222).

The spelling of 121022012101 in words is "one hundred twenty-one billion, twenty-two million, twelve thousand, one hundred one".