1000012020122 has 16 divisors (see below), whose sum is σ = 1550348577792. Its totient is φ = 483269637360.

The previous prime is 1000012020121. The next prime is 1000012020149. The reversal of 1000012020122 is 2210202100001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1000012020121) 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, 10069298 + ... + 10168125.

It is an arithmetic number, because the mean of its divisors is an integer number (96896786112).

Almost surely, 2^{1000012020122} is an apocalyptic number.

1000012020122 is a deficient number, since it is larger than the sum of its proper divisors (550336557670).

1000012020122 is a wasteful number, since it uses less digits than its factorization.

1000012020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238253.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1000012020122 its reverse (2210202100001), we get a palindrome (3210214120123).

The spelling of 1000012020122 in words is "one trillion, twelve million, twenty thousand, one hundred twenty-two".