1210212020101 has 64 divisors (see below), whose sum is σ = 1518389452800. Its totient is φ = 941129280000.

The previous prime is 1210212020047. The next prime is 1210212020111. The reversal of 1210212020101 is 1010202120121.

It is not a de Polignac number, because 1210212020101 - 2³¹ = 1208064536453 is a prime.

It is a super-2 number, since 2×1210212020101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210212020111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254725476 + ... + 254730226.

It is an arithmetic number, because the mean of its divisors is an integer number (23724835200).

Almost surely, 2^{1210212020101} is an apocalyptic number.

It is an amenable number.

1210212020101 is a deficient number, since it is larger than the sum of its proper divisors (308177432699).

1210212020101 is a wasteful number, since it uses less digits than its factorization.

1210212020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

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

Adding to 1210212020101 its reverse (1010202120121), we get a palindrome (2220414140222).

The spelling of 1210212020101 in words is "one trillion, two hundred ten billion, two hundred twelve million, twenty thousand, one hundred one".