12100122021020 has 48 divisors (see below), whose sum is σ = 27720795303936. Its totient is φ = 4399962504000.

The previous prime is 12100122020983. The next prime is 12100122021121. The reversal of 12100122021020 is 2012022100121.

It is a junction number, because it is equal to n+sod(n) for n = 12100122020986 and 12100122021004.

It is a congruent number.

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, 12037205 + ... + 13003635.

It is an arithmetic number, because the mean of its divisors is an integer number (577516568832).

Almost surely, 2^{12100122021020} is an apocalyptic number.

12100122021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100122021020 is an abundant number, since it is smaller than the sum of its proper divisors (15620673282916).

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

12100122021020 is a wasteful number, since it uses less digits than its factorization.

12100122021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023362 (or 1023360 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12100122021020 its reverse (2012022100121), we get a palindrome (14112144121141).

The spelling of 12100122021020 in words is "twelve trillion, one hundred billion, one hundred twenty-two million, twenty-one thousand, twenty".