101021102111020 has 48 divisors (see below), whose sum is σ = 261100694691648. Its totient is φ = 31971513634560.

The previous prime is 101021102111009. The next prime is 101021102111077. The reversal of 101021102111020 is 20111201120101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27753048211 + ... + 27753051850.

It is an arithmetic number, because the mean of its divisors is an integer number (5439597806076).

Almost surely, 2^{101021102111020} is an apocalyptic number.

101021102111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101021102111020 is an abundant number, since it is smaller than the sum of its proper divisors (160079592580628).

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

101021102111020 is a wasteful number, since it uses less digits than its factorization.

101021102111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55506100090 (or 55506100088 counting only the distinct ones).

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

Adding to 101021102111020 its reverse (20111201120101), we get a palindrome (121132303231121).

The spelling of 101021102111020 in words is "one hundred one trillion, twenty-one billion, one hundred two million, one hundred eleven thousand, twenty".