2211220025212 has 12 divisors (see below), whose sum is σ = 4221420048216. Its totient is φ = 1005100011440.

The previous prime is 2211220025167. The next prime is 2211220025237. The reversal of 2211220025212 is 2125200221122.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25127500243 + ... + 25127500330.

It is an arithmetic number, because the mean of its divisors is an integer number (351785004018).

Almost surely, 2^{2211220025212} is an apocalyptic number.

2211220025212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2211220025212 is a deficient number, since it is larger than the sum of its proper divisors (2010200023004).

2211220025212 is a wasteful number, since it uses less digits than its factorization.

2211220025212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50255000588 (or 50255000586 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 2211220025212 its reverse (2125200221122), we get a palindrome (4336420246334).

The spelling of 2211220025212 in words is "two trillion, two hundred eleven billion, two hundred twenty million, twenty-five thousand, two hundred twelve".