1020120121210 has 64 divisors (see below), whose sum is σ = 1903341888000. Its totient is φ = 393418755072.

The previous prime is 1020120121183. The next prime is 1020120121211. The reversal of 1020120121210 is 121210210201.

It is not an unprimeable number, because it can be changed into a prime (1020120121211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13577026 + ... + 13651954.

It is an arithmetic number, because the mean of its divisors is an integer number (29739717000).

Almost surely, 2^{1020120121210} is an apocalyptic number.

1020120121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020120121210 is a deficient number, since it is larger than the sum of its proper divisors (883221766790).

1020120121210 is a wasteful number, since it uses less digits than its factorization.

1020120121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75415.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1020120121210 its reverse (121210210201), we get a palindrome (1141330331411).

The spelling of 1020120121210 in words is "one trillion, twenty billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ten".