12201212111010 has 64 divisors (see below), whose sum is σ = 31540530688128. Its totient is φ = 3002890512384.

The previous prime is 12201212110999. The next prime is 12201212111027. The reversal of 12201212111010 is 1011121210221.

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 31 ways as a sum of consecutive naturals, for example, 102607 + ... + 4940946.

It is an arithmetic number, because the mean of its divisors is an integer number (492820792002).

Almost surely, 2^{12201212111010} is an apocalyptic number.

12201212111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12201212111010 is an abundant number, since it is smaller than the sum of its proper divisors (19339318577118).

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

12201212111010 is a wasteful number, since it uses less digits than its factorization.

12201212111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049779.

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

Adding to 12201212111010 its reverse (1011121210221), we get a palindrome (13212333321231).

The spelling of 12201212111010 in words is "twelve trillion, two hundred one billion, two hundred twelve million, one hundred eleven thousand, ten".