100102121211020 has 48 divisors (see below), whose sum is σ = 210470495558400. Its totient is φ = 39992106686400.

The previous prime is 100102121211013. The next prime is 100102121211107. The reversal of 100102121211020 is 20112121201001.

It is a junction number, because it is equal to n+sod(n) for n = 100102121210986 and 100102121211004.

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, 56611295 + ... + 58352745.

It is an arithmetic number, because the mean of its divisors is an integer number (4384801990800).

Almost surely, 2^{100102121211020} is an apocalyptic number.

100102121211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100102121211020 is an abundant number, since it is smaller than the sum of its proper divisors (110368374347380).

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

100102121211020 is a wasteful number, since it uses less digits than its factorization.

100102121211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744958 (or 1744956 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100102121211020 its reverse (20112121201001), we get a palindrome (120214242412021).

The spelling of 100102121211020 in words is "one hundred trillion, one hundred two billion, one hundred twenty-one million, two hundred eleven thousand, twenty".