121022021220212 has 12 divisors (see below), whose sum is σ = 242044042440480. Its totient is φ = 51866580522936.

The previous prime is 121022021220143. The next prime is 121022021220251. The reversal of 121022021220212 is 212022120220121.

121022021220212 is an admirable number.

It is a super-4 number, since 4×121022021220212⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161107521762 + ... + 2161107521817.

It is an arithmetic number, because the mean of its divisors is an integer number (20170336870040).

Almost surely, 2^{121022021220212} is an apocalyptic number.

It is an amenable number.

121022021220212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121022021220212 is a wasteful number, since it uses less digits than its factorization.

121022021220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4322215043590 (or 4322215043588 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121022021220212 its reverse (212022120220121), we get a palindrome (333044141440333).

The spelling of 121022021220212 in words is "one hundred twenty-one trillion, twenty-two billion, twenty-one million, two hundred twenty thousand, two hundred twelve".