1012211102123 has 8 divisors (see below), whose sum is σ = 1090271013216. Its totient is φ = 934179408000.

The previous prime is 1012211102113. The next prime is 1012211102131. The reversal of 1012211102123 is 3212011122101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012211102123 is a prime.

It is a super-2 number, since 2×1012211102123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012211102113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6979703 + ... + 7123248.

It is an arithmetic number, because the mean of its divisors is an integer number (136283876652).

Almost surely, 2^{1012211102123} is an apocalyptic number.

1012211102123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1012211102123 is a deficient number, since it is larger than the sum of its proper divisors (78059911093).

1012211102123 is a wasteful number, since it uses less digits than its factorization.

1012211102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14108485.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1012211102123 its reverse (3212011122101), we get a palindrome (4224222224224).

The spelling of 1012211102123 in words is "one trillion, twelve billion, two hundred eleven million, one hundred two thousand, one hundred twenty-three".