121012211021110 has 16 divisors (see below), whose sum is σ = 217887966562032. Its totient is φ = 48390220692000.

The previous prime is 121012211021089. The next prime is 121012211021131. The reversal of 121012211021110 is 11120112210121.

It is an interprime number because it is at equal distance from previous prime (121012211021089) and next prime (121012211021131).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1832929896 + ... + 1832995915.

It is an arithmetic number, because the mean of its divisors is an integer number (13617997910127).

Almost surely, 2^{121012211021110} is an apocalyptic number.

121012211021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012211021110 is a deficient number, since it is larger than the sum of its proper divisors (96875755540922).

121012211021110 is a wasteful number, since it uses less digits than its factorization.

121012211021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665929119.

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

Adding to 121012211021110 its reverse (11120112210121), we get a palindrome (132132323231231).

The spelling of 121012211021110 in words is "one hundred twenty-one trillion, twelve billion, two hundred eleven million, twenty-one thousand, one hundred ten".