121020212112202 has 24 divisors (see below), whose sum is σ = 196629589776780. Its totient is φ = 55838076128640.

The previous prime is 121020212112197. The next prime is 121020212112221. The reversal of 121020212112202 is 202211212020121.

It can be written as a sum of positive squares in 6 ways, for example, as 7805100525121 + 113215111587081 = 2793761^2 + 10640259^2 .

It is a super-3 number, since 3×121020212112202³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121020212112202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54703449 + ... + 56872732.

Almost surely, 2^{121020212112202} is an apocalyptic number.

121020212112202 is a deficient number, since it is larger than the sum of its proper divisors (75609377664578).

121020212112202 is a wasteful number, since it uses less digits than its factorization.

121020212112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111579418 (or 111579405 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121020212112202 its reverse (202211212020121), we get a palindrome (323231424132323).

The spelling of 121020212112202 in words is "one hundred twenty-one trillion, twenty billion, two hundred twelve million, one hundred twelve thousand, two hundred two".