121022011020021 has 32 divisors (see below), whose sum is σ = 163331428271616. Its totient is φ = 79702639848000.

The previous prime is 121022011019993. The next prime is 121022011020083. The reversal of 121022011020021 is 120020110220121.

It is not a de Polignac number, because 121022011020021 - 2⁷ = 121022011019893 is a prime.

It is a super-3 number, since 3×121022011020021³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022011020221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739566591 + ... + 739730211.

It is an arithmetic number, because the mean of its divisors is an integer number (5104107133488).

Almost surely, 2^{121022011020021} is an apocalyptic number.

It is an amenable number.

121022011020021 is a deficient number, since it is larger than the sum of its proper divisors (42309417251595).

121022011020021 is a wasteful number, since it uses less digits than its factorization.

121022011020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172273.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121022011020021 its reverse (120020110220121), we get a palindrome (241042121240142).

The spelling of 121022011020021 in words is "one hundred twenty-one trillion, twenty-two billion, eleven million, twenty thousand, twenty-one".