102001212121022 has 8 divisors (see below), whose sum is σ = 153006007481976. Its totient is φ = 50999209627032.

The previous prime is 102001212121021. The next prime is 102001212121079. The reversal of 102001212121022 is 220121212100201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001212121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698125433 + ... + 698271524.

It is an arithmetic number, because the mean of its divisors is an integer number (19125750935247).

Almost surely, 2^{102001212121022} is an apocalyptic number.

102001212121022 is a deficient number, since it is larger than the sum of its proper divisors (51004795360954).

102001212121022 is a wasteful number, since it uses less digits than its factorization.

102001212121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396433482.

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

Adding to 102001212121022 its reverse (220121212100201), we get a palindrome (322122424221223).

The spelling of 102001212121022 in words is "one hundred two trillion, one billion, two hundred twelve million, one hundred twenty-one thousand, twenty-two".