1210022110020 has 48 divisors (see below), whose sum is σ = 3402602985600. Its totient is φ = 321287698176.

The previous prime is 1210022109983. The next prime is 1210022110051. The reversal of 1210022110020 is 200112200121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210022109978 and 1210022110005.

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, 43262920 + ... + 43290879.

It is an arithmetic number, because the mean of its divisors is an integer number (70887562200).

Almost surely, 2^{1210022110020} is an apocalyptic number.

1210022110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210022110020 is an abundant number, since it is smaller than the sum of its proper divisors (2192580875580).

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

1210022110020 is a wasteful number, since it uses less digits than its factorization.

1210022110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86554044 (or 86554042 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210022110020 its reverse (200112200121), we get a palindrome (1410134310141).

The spelling of 1210022110020 in words is "one trillion, two hundred ten billion, twenty-two million, one hundred ten thousand, twenty".