20122121010102 has 32 divisors (see below), whose sum is σ = 40590140357760. Its totient is φ = 6649925169600.

The previous prime is 20122121010067. The next prime is 20122121010109. The reversal of 20122121010102 is 20101012122102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122121010109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24752524 + ... + 25552527.

It is an arithmetic number, because the mean of its divisors is an integer number (1268441886180).

Almost surely, 2^{20122121010102} is an apocalyptic number.

20122121010102 is an abundant number, since it is smaller than the sum of its proper divisors (20468019347658).

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

20122121010102 is a wasteful number, since it uses less digits than its factorization.

20122121010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50305628.

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

Adding to 20122121010102 its reverse (20101012122102), we get a palindrome (40223133132204).

The spelling of 20122121010102 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, ten thousand, one hundred two".