121021212010002 has 16 divisors (see below), whose sum is σ = 242045909132832. Its totient is φ = 40339823151200.

The previous prime is 121021212010001. The next prime is 121021212010079. The reversal of 121021212010002 is 200010212120121.

It is a super-2 number, since 2×121021212010002² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021212010001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144761499 + ... + 145595102.

It is an arithmetic number, because the mean of its divisors is an integer number (15127869320802).

Almost surely, 2^{121021212010002} is an apocalyptic number.

121021212010002 is an abundant number, since it is smaller than the sum of its proper divisors (121024697122830).

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

121021212010002 is a wasteful number, since it uses less digits than its factorization.

121021212010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290426073.

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

Adding to 121021212010002 its reverse (200010212120121), we get a palindrome (321031424130123).

The spelling of 121021212010002 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twelve million, ten thousand, two".