121020211212202 has 16 divisors (see below), whose sum is σ = 189424632594240. Its totient is φ = 57878714050432.

The previous prime is 121020211212163. The next prime is 121020211212211. The reversal of 121020211212202 is 202212112020121.

It is a self number, because there is not a number n which added to its sum of digits gives 121020211212202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6532327 + ... + 16873402.

It is an arithmetic number, because the mean of its divisors is an integer number (11839039537140).

Almost surely, 2^{121020211212202} is an apocalyptic number.

121020211212202 is a deficient number, since it is larger than the sum of its proper divisors (68404421382038).

121020211212202 is a wasteful number, since it uses less digits than its factorization.

121020211212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23518157.

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

Adding to 121020211212202 its reverse (202212112020121), we get a palindrome (323232323232323).

The spelling of 121020211212202 in words is "one hundred twenty-one trillion, twenty billion, two hundred eleven million, two hundred twelve thousand, two hundred two".