12121211102010 has 32 divisors (see below), whose sum is σ = 29113580865600. Its totient is φ = 3229803602688.

The previous prime is 12121211102003. The next prime is 12121211102023. The reversal of 12121211102010 is 1020111212121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 157420735 + ... + 157497714.

It is an arithmetic number, because the mean of its divisors is an integer number (909799402050).

Almost surely, 2^{12121211102010} is an apocalyptic number.

12121211102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121211102010 is an abundant number, since it is smaller than the sum of its proper divisors (16992369763590).

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

12121211102010 is a wasteful number, since it uses less digits than its factorization.

12121211102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314919742.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12121211102010 its reverse (1020111212121), we get a palindrome (13141322314131).

The spelling of 12121211102010 in words is "twelve trillion, one hundred twenty-one billion, two hundred eleven million, one hundred two thousand, ten".