1021211199974 has 32 divisors (see below), whose sum is σ = 1799424270336. Its totient is φ = 425487051360.

The previous prime is 1021211199913. The next prime is 1021211199979. The reversal of 1021211199974 is 4799911121201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021211199979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163094 + ... + 1438409.

It is an arithmetic number, because the mean of its divisors is an integer number (56232008448).

Almost surely, 2^{1021211199974} is an apocalyptic number.

1021211199974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1021211199974 is a deficient number, since it is larger than the sum of its proper divisors (778213070362).

1021211199974 is a wasteful number, since it uses less digits than its factorization.

1021211199974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602780.

The product of its (nonzero) digits is 81648, while the sum is 47.

The spelling of 1021211199974 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred ninety-nine thousand, nine hundred seventy-four".