1021211120122 has 8 divisors (see below), whose sum is σ = 1531825584372. Its totient is φ = 510602592000.

The previous prime is 1021211120117. The next prime is 1021211120141. The reversal of 1021211120122 is 2210211121201.

It can be written as a sum of positive squares in 2 ways, for example, as 806998585561 + 214212534561 = 898331^2 + 462831^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1021211120096 and 1021211120105.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1025629 + ... + 1759072.

Almost surely, 2^{1021211120122} is an apocalyptic number.

1021211120122 is a deficient number, since it is larger than the sum of its proper divisors (510614464250).

1021211120122 is a wasteful number, since it uses less digits than its factorization.

1021211120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968064.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021211120122 its reverse (2210211121201), we get a palindrome (3231422241323).

The spelling of 1021211120122 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred twenty-two".