102102001011220 has 24 divisors (see below), whose sum is σ = 245044802427264. Its totient is φ = 35006400346656.

The previous prime is 102102001011217. The next prime is 102102001011293. The reversal of 102102001011220 is 22110100201201.

It is a super-2 number, since 2×102102001011220² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102102001011220.

It is a congruent number.

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, 364650003472 + ... + 364650003751.

It is an arithmetic number, because the mean of its divisors is an integer number (10210200101136).

Almost surely, 2^{102102001011220} is an apocalyptic number.

102102001011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102001011220 is an abundant number, since it is smaller than the sum of its proper divisors (142942801416044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102001011220 is a wasteful number, since it uses less digits than its factorization.

102102001011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729300007239 (or 729300007237 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102102001011220 its reverse (22110100201201), we get a palindrome (124212101212421).

The spelling of 102102001011220 in words is "one hundred two trillion, one hundred two billion, one million, eleven thousand, two hundred twenty".