1021111102372 has 24 divisors (see below), whose sum is σ = 1854584645760. Its totient is φ = 491344469280.

The previous prime is 1021111102189. The next prime is 1021111102373. The reversal of 1021111102372 is 2732011111201.

It is a super-2 number, since 2×1021111102372² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021111102373) 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, 14301004 + ... + 14372227.

It is an arithmetic number, because the mean of its divisors is an integer number (77274360240).

Almost surely, 2^{1021111102372} is an apocalyptic number.

It is an amenable number.

1021111102372 is a deficient number, since it is larger than the sum of its proper divisors (833473543388).

1021111102372 is a wasteful number, since it uses less digits than its factorization.

1021111102372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28673571 (or 28673569 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 1021111102372 its reverse (2732011111201), we get a palindrome (3753122213573).

The spelling of 1021111102372 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred two thousand, three hundred seventy-two".