1021102122122 has 16 divisors (see below), whose sum is σ = 1552953897600. Its totient is φ = 503466762240.

The previous prime is 1021102122083. The next prime is 1021102122179. The reversal of 1021102122122 is 2212212011201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021102122122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856247 + ... + 4112522.

It is an arithmetic number, because the mean of its divisors is an integer number (97059618600).

Almost surely, 2^{1021102122122} is an apocalyptic number.

1021102122122 is a deficient number, since it is larger than the sum of its proper divisors (531851775478).

1021102122122 is an equidigital number, since it uses as much as digits as its factorization.

1021102122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7969661.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1021102122122 its reverse (2212212011201), we get a palindrome (3233314133323).

The spelling of 1021102122122 in words is "one trillion, twenty-one billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-two".