1020121212102 has 16 divisors (see below), whose sum is σ = 2047451764800. Its totient is φ = 338838847272.

The previous prime is 1020121212101. The next prime is 1020121212113. The reversal of 1020121212102 is 2012121210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121212101) 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, 300387352 + ... + 300390747.

It is an arithmetic number, because the mean of its divisors is an integer number (127965735300).

Almost surely, 2^{1020121212102} is an apocalyptic number.

1020121212102 is an abundant number, since it is smaller than the sum of its proper divisors (1027330552698).

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

1020121212102 is a wasteful number, since it uses less digits than its factorization.

1020121212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600778387.

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

Adding to 1020121212102 its reverse (2012121210201), we get a palindrome (3032242422303).

The spelling of 1020121212102 in words is "one trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, one hundred two".