121020122100212 has 48 divisors (see below), whose sum is σ = 220692764754000. Its totient is φ = 57995631504384.

The previous prime is 121020122100211. The next prime is 121020122100223. The reversal of 121020122100212 is 212001221020121.

It can be written as a sum of positive squares in 8 ways, for example, as 28789944976 + 120991332155236 = 169676^2 + 10999606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020122100211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 947560214 + ... + 947687922.

It is an arithmetic number, because the mean of its divisors is an integer number (4597765932375).

Almost surely, 2^{121020122100212} is an apocalyptic number.

It is an amenable number.

121020122100212 is a deficient number, since it is larger than the sum of its proper divisors (99672642653788).

121020122100212 is a wasteful number, since it uses less digits than its factorization.

121020122100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187508 (or 187506 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121020122100212 its reverse (212001221020121), we get a palindrome (333021343120333).

The spelling of 121020122100212 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty-two million, one hundred thousand, two hundred twelve".