102101220111010 has 8 divisors (see below), whose sum is σ = 183782196199836. Its totient is φ = 40840488044400.

The previous prime is 102101220110971. The next prime is 102101220111097. The reversal of 102101220111010 is 10111022101201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94482113076481 + 7619107034529 = 9720191^2 + 2760273^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105061005541 + ... + 5105061005560.

Almost surely, 2^{102101220111010} is an apocalyptic number.

102101220111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102101220111010 is a deficient number, since it is larger than the sum of its proper divisors (81680976088826).

102101220111010 is a wasteful number, since it uses less digits than its factorization.

102101220111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10210122011108.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102101220111010 its reverse (10111022101201), we get a palindrome (112212242212211).

The spelling of 102101220111010 in words is "one hundred two trillion, one hundred one billion, two hundred twenty million, one hundred eleven thousand, ten".