121210210201010 has 128 divisors (see below), whose sum is σ = 257098586457600. Its totient is φ = 40285622108160.

The previous prime is 121210210201009. The next prime is 121210210201061. The reversal of 121210210201010 is 10102012012121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1592130626 + ... + 1592206754.

It is an arithmetic number, because the mean of its divisors is an integer number (2008582706700).

Almost surely, 2^{121210210201010} is an apocalyptic number.

121210210201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121210210201010 is an abundant number, since it is smaller than the sum of its proper divisors (135888376256590).

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

121210210201010 is a wasteful number, since it uses less digits than its factorization.

121210210201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81556.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121210210201010 its reverse (10102012012121), we get a palindrome (131312222213131).

The spelling of 121210210201010 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred ten million, two hundred one thousand, ten".