121012220101010 has 32 divisors (see below), whose sum is σ = 249972367911552. Its totient is φ = 41317746750720.

The previous prime is 121012220100991. The next prime is 121012220101043. The reversal of 121012220101010 is 10101022210121.

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 15 ways as a sum of consecutive naturals, for example, 3586593092 + ... + 3586626831.

It is an arithmetic number, because the mean of its divisors is an integer number (7811636497236).

Almost surely, 2^{121012220101010} is an apocalyptic number.

121012220101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012220101010 is an abundant number, since it is smaller than the sum of its proper divisors (128960147810542).

121012220101010 is a wasteful number, since it uses less digits than its factorization.

121012220101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7173220178.

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

Adding to 121012220101010 its reverse (10101022210121), we get a palindrome (131113242311131).

It can be divided in two parts, 121012 and 220101010, that added together give a palindrome (220222022).

The spelling of 121012220101010 in words is "one hundred twenty-one trillion, twelve billion, two hundred twenty million, one hundred one thousand, ten".