2211010121020 has 192 divisors, whose sum is σ = 4832042729472. Its totient is φ = 849429504000.

The previous prime is 2211010121009. The next prime is 2211010121029. The reversal of 2211010121020 is 201210101122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211010121029) 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, 5106258724 + ... + 5106259156.

It is an arithmetic number, because the mean of its divisors is an integer number (25166889216).

Almost surely, 2^{2211010121020} is an apocalyptic number.

2211010121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211010121020 is an abundant number, since it is smaller than the sum of its proper divisors (2621032608452).

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

2211010121020 is a wasteful number, since it uses less digits than its factorization.

2211010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1050 counting only the distinct ones).

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

Adding to 2211010121020 its reverse (201210101122), we get a palindrome (2412220222142).

The spelling of 2211010121020 in words is "two trillion, two hundred eleven billion, ten million, one hundred twenty-one thousand, twenty".