1212100022010 has 64 divisors (see below), whose sum is σ = 3013567110144. Its totient is φ = 311686771200.

The previous prime is 1212100021999. The next prime is 1212100022033. The reversal of 1212100022010 is 102200012121.

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, 2057769 + ... + 2580428.

It is an arithmetic number, because the mean of its divisors is an integer number (47086986096).

Almost surely, 2^{1212100022010} is an apocalyptic number.

1212100022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212100022010 is an abundant number, since it is smaller than the sum of its proper divisors (1801467088134).

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

1212100022010 is a wasteful number, since it uses less digits than its factorization.

1212100022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638519.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212100022010 its reverse (102200012121), we get a palindrome (1314300034131).

The spelling of 1212100022010 in words is "one trillion, two hundred twelve billion, one hundred million, twenty-two thousand, ten".