2220121101040 has 80 divisors (see below), whose sum is σ = 5334119103456. Its totient is φ = 858807936000.

The previous prime is 2220121100983. The next prime is 2220121101049. The reversal of 2220121101040 is 401011210222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220121101049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2847531 + ... + 3542410.

Almost surely, 2^{2220121101040} is an apocalyptic number.

2220121101040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220121101040 is an abundant number, since it is smaller than the sum of its proper divisors (3113998002416).

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

2220121101040 is a wasteful number, since it uses less digits than its factorization.

2220121101040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390098 (or 6390092 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2220121101040 its reverse (401011210222), we get a palindrome (2621132311262).

The spelling of 2220121101040 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred one thousand, forty".