121021221000002 has 8 divisors (see below), whose sum is σ = 181587328859712. Its totient is φ = 60492111380100.

The previous prime is 121021220999989. The next prime is 121021221000019. The reversal of 121021221000002 is 200000122120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121021221000002² (a number of 29 digits) contains 22 as substring.

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, 9249551774 + ... + 9249564857.

It is an arithmetic number, because the mean of its divisors is an integer number (22698416107464).

Almost surely, 2^{121021221000002} is an apocalyptic number.

121021221000002 is a deficient number, since it is larger than the sum of its proper divisors (60566107859710).

121021221000002 is a wasteful number, since it uses less digits than its factorization.

121021221000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18499119904.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121021221000002 its reverse (200000122120121), we get a palindrome (321021343120123).

The spelling of 121021221000002 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty-one million, two", and thus it is an aban number.