1220102101012 has 6 divisors (see below), whose sum is σ = 2135178676778. Its totient is φ = 610051050504.

The previous prime is 1220102100961. The next prime is 1220102101069. The reversal of 1220102101012 is 2101012010221.

It can be written as a sum of positive squares in only one way, i.e., 791608796176 + 428493304836 = 889724^2 + 654594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220102100983 and 1220102101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152512762623 + ... + 152512762630.

Almost surely, 2^{1220102101012} is an apocalyptic number.

It is an amenable number.

1220102101012 is a deficient number, since it is larger than the sum of its proper divisors (915076575766).

1220102101012 is a wasteful number, since it uses less digits than its factorization.

1220102101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305025525257 (or 305025525255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220102101012 its reverse (2101012010221), we get a palindrome (3321114111233).

The spelling of 1220102101012 in words is "one trillion, two hundred twenty billion, one hundred two million, one hundred one thousand, twelve".